A member asked:

Today is may 11th. my friend smoked a little marijuana on apr 19. didn't smoke ever before that. drug test is on may 13th. will he pass?

5 doctors weighed in across 2 answers
Dr. Gerald Mandell answered

Specializes in Nuclear Medicine

Time and amount: A single dose of marijuana is detected for 1-7 days in urine, marijuana detection time based on usage usage at 1 time only 5-8 days usage at 2-4 times per month 11-18 days usage at 2-4 times per week 23-35 days usage at 5-6 times per week 33-48 days daily usage 49-63 days.

Answered 9/28/2016

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Maybe...: Assuming it is a urine test which is most common, and your friend is not a regular user, then thc is usually eliminated within 13 days, however, if a habitual user, the metabolite is stored in fat and slowly released and can be positive for 45-90 days.

Answered 11/26/2013

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